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Apparatus and method for transmitting and receiving a signal in a multiple input multiple output mobile communication system

Active Publication Date: 2008-07-03
SAMSUNG ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, different from wire channel environments, wireless channel environments of mobile communication systems undergo occurrence of inevitable errors, which cause loss of information, due to various factors, such as multi-path interference, shadowing, electric wave attenuation, time-varying noise, and interference and fading.
The loss of information may cause severe distortion of an actual transmission signal, thereby degrading the entire mobile communication system performance.
However, such a configuration of the antenna grouping matrix in which every transmission antenna transmits one data stream cannot solve the problem of spatial correlation of the transmission antennas.

Method used

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  • Apparatus and method for transmitting and receiving a signal in a multiple input multiple output mobile communication system

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Embodiment Construction

[0037]FIGS. 3 through 12, discussed below, and the various embodiments used to describe the principles of the present disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged wireless communication system.

[0038]Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

[0039]The present invention proposes an apparatus and a method for signal transmission and reception according to a pre-processing scheme in a MIMO mobile communication system using a Multiple Input Multiple Output (MIMO) scheme. Further, the...

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Abstract

Disclosed is an apparatus and a method for signal transmission and reception according to a pre-processing scheme in a MIMO mobile communication system. The method includes: inputting a symbol; and pre-processing the input symbol according to a pre-processing matrix corresponding to pre-processing matrix information and transmitting the pre-processed symbol through a corresponding transmission antenna, wherein the pre-processing matrix is determined in accordance with a number of transmission antennas and a rate used in the MIMO mobile communication system.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S) AND CLAIM OF PRIORITY[0001]This application claims the priority under 35 U.S.C. §119 (a) to a Korean Patent Application filed in the Korean Intellectual Property Office on Jan. 2, 2007 and assigned Serial No. 2007-175 the contents of which are hereby incorporated by reference.TECHNICAL FIELD OF THE INVENTION[0002]The present invention relates to an apparatus and a method for signal transmission and reception in a mobile communication system, and more particularly to an apparatus and a method signal transmission and reception in a mobile communication system (MIMO mobile communication system) using a Multiple Input Multiple Output (MIMO) scheme.BACKGROUND OF THE INVENTION[0003]In general, next-generation communication systems are developing in pursuit of a system capable of providing a service allowing high-speed large-capacity data transmission and reception to Mobile Stations (MSs). However, different from wire channel environments, wireles...

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Application Information

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IPC IPC(8): H04L27/04H04L27/28
CPCH04B7/0634H04B7/0669H04B7/0891H04L1/0643H04L1/0656H04L25/0204H04L2025/03426A45F3/08A61H1/008
Inventor JUNG, YOUNG-HOCHO, MYEON-KYUNJOUNG, JIN-GONLEE, YONG-HOON
Owner SAMSUNG ELECTRONICS CO LTD
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